Arizona 8th Congressional District
Akashic| Year | Margin (D minus R) |
|---|---|
| 2008 | −21.4% |
| 2012 | −23.7% |
| 2016 | −18.8% |
| 2020 | −13.6% |
| 2024 | −16.3% |
Federal officeholders only. State and local officeholders are planned for the next data pass.
U.S. House
Each result reflects the U.S. House district as it was drawn for that election; redistricting has redrawn these lines over time, so they can differ from the current 120th-Congress district shown on the map above.
| Year | District | Won | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | 8 | R | 43.5%160,344 | 56.5%208,269 | 368,613 |
| 2022 | 8 | R | 3.5%7,158 | 96.5%197,555 | 204,713 |
| 2020 | 8 | R | 40.4%170,816 | 59.6%251,633 | 422,467 |
| 2018 | 8 | R | 44.5%135,569 | 55.5%168,835 | 304,417 |
| 2016 | 8 | R | 0.0%0 | 68.6%205,017 | 298,971 |
| 2014 | 8 | R | 0.0%0 | 75.8%128,710 | 169,776 |
| 2012 | 8 | R | 35.1%95,635 | 63.3%172,809 | 272,791 |
| 2010 | 8 | D | 48.8%138,280 | 47.3%134,124 | 283,578 |
| 2008 | 8 | D | 54.7%179,629 | 42.8%140,553 | 328,266 |
| 2006 | 8 | D | 54.3%137,655 | 42.1%106,790 | 253,720 |
| 2004 | 8 | R | 36.2%109,963 | 60.4%183,363 | 303,769 |
| 2002 | 8 | R | 33.6%67,328 | 63.3%126,930 | 200,428 |
U.S. Senate
| Year | Won | Democratic | Republican | Total |
|---|---|---|---|---|
| 2024 | D | 50.1%1,676,335 | 47.7%1,595,761 | 3,347,964 |
| 2022 | D | 51.4%1,322,027 | 46.5%1,196,328 | 2,572,294 |
| 2020 | D | 51.2%1,716,634 | 48.8%1,638,060 | 3,355,307 |
| 2018 | D | 50.0%1,191,100 | 47.6%1,135,200 | 2,383,742 |
| 2016 | R | 40.8%1,031,245 | 53.8%1,359,761 | 2,529,768 |
| 2012 | R | 46.2%1,036,542 | 49.2%1,104,457 | 2,243,108 |
| 2010 | R | 34.8%592,011 | 59.1%1,005,615 | 1,702,326 |
| 2006 | R | 43.5%664,141 | 53.3%814,398 | 1,526,770 |
| 2004 | R | 20.6%404,507 | 76.7%1,505,372 | 1,961,677 |
| 2000 | R | 0.0%0 | 79.3%1,108,196 | 1,397,076 |
| 1998 | R | 27.2%275,224 | 68.8%696,577 | 1,013,093 |
| 1994 | R | 39.5%442,510 | 53.7%600,999 | 1,119,002 |
| 1992 | R | 31.6%436,321 | 55.8%771,395 | 1,382,025 |
| 1988 | D | 56.7%660,403 | 41.1%478,060 | 1,164,507 |
| 1986 | R | 39.5%340,965 | 60.5%521,850 | 862,815 |
| 1982 | D | 56.9%411,970 | 40.3%291,749 | 723,819 |
| 1980 | R | 48.4%422,972 | 49.5%432,371 | 874,225 |
| 1976 | D | 54.0%400,334 | 43.3%321,236 | 741,210 |
Anchored in the West Valley suburbs of Maricopa County, AZ-08 posted an R+19.2 margin in 2024, making it among the widest presidential spreads in a state otherwise defined by competitive statewide races.
Across the recorded series it reached a Republican high of 23.7 points in 2012. Between 2020 and 2024 the district moved 2.8 points toward the Republican candidate; the 2024 margin was 16.3 points.
A population of 794,632, a 69% non-Hispanic-white share, and a median household income of $82,925 describe the district. The district's voting pattern over the last decade is most similar to that of Congressional District 5 and Congressional District 1.
The congressional districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Arizona 8th Congressional District. Akashic. https://akashic.app/cd/0408/. Accessed May 20, 2026. License: CC BY 4.0.